Process for the production of solutions of volatile oils



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l ntented Felt. l2, lQZ tl.

senses lenses JEAN ALTWEGG, D13 LYON, FRANCE, ASSIGNOR T0 SOCIETE CHIMIQUE IlES USINES DU REZONE, OF PARIS, FRANCE.

PROCESS FOR THE PRODUCTION OF SOLUTIONS OF VOLATILE OILS.

No Drawing.

des Sciences, Vol. U36, page 827, 1918) that. this antiseptic powen attains an extraordiuarily high value in a long series of known volatile oils and far surpasses, for example, carbolic acid. Attempts have been made to utilize these properties of volatile oils in therapeutics as for example in the treatment of wounds. These attempts failed, however, owing to the slight solubility of volatile oils in water; and it was necessary to make shift with tmsnitable alcoholic or acetone solutions or with in convenient oil emulsions.

It has now been discovered that the voletile oils dissolve in alkali salt solutions of bile acids (gall acids). These solutions can be employed directly in the treatment: of wounds and exhibit the surprising property of permitting dilution to a heavy extent With water. Thus permanent emulsions are formed particularly adapted for antiseptic washings and irrigation. All these solutions combine the properties of the bile salts of dissolving pus, mucus, and

recesses tor the Production of Solutions Application filed April 11. 1922. Serial no. 551,651.

lipoid matter with the antiseptic ettect of the volatile oils/ Example I: To a solution containing 300 grammes sodium salt of hileacids (natrium choleinieiun) to the litre-is gradually added ed with constant stirring 100 c. cm. of oil of thyme, thus obtaining a clear and somewhat oily'solution. By diluting this solution with water to such an extent that there remains one gramme of oil of thyme to the so litre, there will thus he pro uced a whitish thoroughly permanent emulsion which moistens the human skin after the manner of seep. I

Example 11: When in Example 1 oil of thyme is replaced by oil of cloves, wholly like solutions are obtained. The correspondingly diluted emulsions are more turbid but nevertheless, very stable.

What I claim and desire to secure by Letters Patent is r l. A process for the production of solutions of volatile oils, which consists in dissolving the volatile oils in alkali salt solutions of bile acids.

' 2. The process of producing a solution of a volatile oil, which consists in dissolving oil of thyme in an alkali salt solution of bile acid.

3. The process of producing a solution of volatile oil, which consistsv in forming a 70 solution containing 300 gramsot' sodium salt of bile acids to the litre, and gradually adding'thereto c. cm. of oil of thyme while constantly stirring the solution.

In testimony whereof I have signed my 7 name to this specification.

' JEAN A'L'IVVEGG.

Witnesses: JULIAN GAMBLE SMnoLv, CYRUS BnowN FOLLMER. 

